SYD - PHL

$892 Find Cheap Flights from Sydney to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Philadelphia departing on 24/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Philadelphia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Philadelphia, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
$1,442
Typical prices: $2,321-$1,745
United Airlines
Mon 27/7Mon 3/8
SYD - PHL • 1 stop
Cheapest one-way flight
$892
Typical prices: $1,114-$1,741
United Airlines
Mon 24/8
SYD - PHL • 1 stop
Top airlines
Cheapest • from $1,442 (return)
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Sydney and Philadelphia. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg $1,794 (return)
Shortest trip • 20h 57m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Philadelphia!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sydney to Philadelphia (SYD-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sydney to Philadelphia

Mon, 27 Jul - Mon, 3 Aug
United Airlines Logo
10:20 - 17:17
SYD
-
PHL
20h 57m
1 stop
United Airlines Logo
06:00 - 06:55
PHL
-
SYD
34h 55m
1 stop
$1,442United Airlines
Sat, 15 Aug - Mon, 17 Aug
Qantas Airways Logo
17:50 - 20:09
SYD
-
PHL
40h 19m
1 stop
Qantas Airways Logo
16:56 - 06:55
PHL
-
SYD
23h 59m
2 stops
$1,476Qantas Airways
Tue, 28 Jul - Tue, 4 Aug
Delta Logo
09:15 - 05:29
SYD
-
PHL
34h 14m
2 stops
Delta Logo
06:05 - 06:50
PHL
-
SYD
34h 45m
2 stops
$1,673Delta
Thu, 29 Oct - Mon, 2 Nov
Delta Logo
09:40 - 23:40
SYD
-
PHL
29h 00m
2 stops
Delta Logo
13:00 - 08:30
PHL
-
SYD
27h 30m
2 stops
$1,675Delta
Thu, 6 Aug - Mon, 10 Aug
American Airlines Logo
09:10 - 14:26
SYD
-
PHL
43h 16m
1 stop
American Airlines Logo
16:56 - 06:55
PHL
-
SYD
23h 59m
2 stops
$1,709American Airlines
Tue, 21 Jul - Tue, 28 Jul
Virgin Australia Logo
10:20 - 17:17
SYD
-
PHL
20h 57m
1 stop
Virgin Australia Logo
09:25 - 06:55
PHL
-
SYD
31h 30m
1 stop
$1,710Virgin Australia
Sat, 15 Aug - Mon, 17 Aug
Qantas Airways Logo
17:50 - 15:21
SYD
-
PHL
35h 31m
1 stop
Qantas Airways Logo
12:57 - 06:55
PHL
-
SYD
27h 58m
1 stop
$1,788Qantas Airways
Thu, 6 Aug - Mon, 10 Aug
United Airlines Logo
09:30 - 01:23
SYD
-
PHL
29h 53m
2 stops
United Airlines Logo
18:19 - 06:55
PHL
-
SYD
22h 36m
1 stop
$1,804United Airlines
Thu, 6 Aug - Mon, 10 Aug
United Airlines Logo
09:30 - 22:29
SYD
-
PHL
26h 59m
2 stops
United Airlines Logo
13:31 - 07:00
PHL
-
SYD
27h 29m
2 stops
$1,812United Airlines
Thu, 6 Aug - Mon, 10 Aug
United Airlines Logo
09:30 - 01:23
SYD
-
PHL
29h 53m
2 stops
United Airlines Logo
18:19 - 06:55
PHL
-
SYD
22h 36m
1 stop
$1,814United Airlines
Booking Insights

KAYAK's insights & trends for Sydney to Philadelphia flights

Get data-powered insights and trends into flights from Sydney to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Sydney to Philadelphia?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Sydney to Philadelphia departing in July.

What is the cheapest month to fly from Sydney to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sydney to Philadelphia is November, where tickets cost $1,615 (return) on average. On the other hand, the most expensive months are September and January, where the average cost of round-trip tickets is $3,311 and $2,687 respectively.

Good to know

Low seasonFebruary
Cheapest flight$892
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 17% lower on average.
Flight from Sydney to Philadelphia

When to book flights from Sydney to Philadelphia

Are your dates flexible? Find out the best times to travel from Sydney to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sydney to Philadelphia

  • What is the cheapest flight from Sydney to Philadelphia?

    In the last 3 days, the lowest price for a flight from Sydney to Philadelphia was $892 for a one-way ticket and $1,442 for a return.

  • Which aircraft models fly most regularly from Sydney to Philadelphia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sydney to Philadelphia?

    Star Alliance, and oneworld are the airline alliances operating flights between Sydney and Philadelphia, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Sydney to Philadelphia, Qantas Airways or American Airlines?

    The two airlines most popular with KAYAK users for flights from Sydney to Philadelphia are Qantas Airways and American Airlines. With an average price for the route of $1,922 and an overall rating of 7.5, Qantas Airways is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,926 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Sydney to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Sydney is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sydney to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Philadelphia with an airline and back to Sydney with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines flying from Sydney to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sydney to Philadelphia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Qantas AirwaysOverall score based on 1047 reviews
7.7Boarding
8.1Crew
7.2Entertainment
7.5Comfort
7.0Food
Airline reviews

We had a cancellation due to weather, but the American Airlines staff was very helpful. Once we got on a plane, the trip was great.

8.0 ExcellentBill, May 2026
DFW - COS
Read more Qantas Airways reviews

We had a cancellation due to weather, but the American Airlines staff was very helpful. Once we got on a plane, the trip was great.

Great food and good entertainment options for the long flight.

It seems that qantas are trying hard to regain their status as Australia's premier airline. I only flew economy but happy with the service entertainment, food, configuration everything.

Loved the food and beverages available, spacious economy class, excellent entertainment

Very good overall. Highly recommend for all flying to Australia

We had bulkhead seats in a A380 in the upper deck in seats 31 D and E. Storage was very limited other than in overhead bin - which is not within reach when in seat. Yet paying same price as others in premium economy who have a lot more storage within arm’s reach. Seems very unfair.

On the Qantas flight, I could barely hear some of the announcements. It was better when I could read them on the screen.

Good check in and helpful staff. Delayed for 1 hour. Took about 45 Mins to get baggage’s at DFW . Food was average ( Hindu meal ) . Overall it was good experience

Our boarding and flight was very good. However when we landed and pulled in to the gate it took 55 minutes for the jet bridge to be positioned next to the aircraft. That caused us to miss our ground transportation and it caused us unnecessary last minute transit planning and expense. Our flight was AA1733 on March 17, 2026

We booked with Qantas instead of Delta and we instead flew on American Airlines. American is not our favorite to go on. No leg room and the width of seats are a joke. Your are packed like sardines on American flights.

My flight times changed 4 times since I originally booked the flight. The last time being the day of flight - a 2 hour delay. This meant instead of getting into IAH at 9:30p, I got in at 2:30a. This was very disappointing!!!

The seats. The seat in front of me was awful and when the guy sat down, it flew back and hit my head when I was putting my backpack under the seat, It didn't make for a pleasant experience,

Cancelled flight. Still waiting to get home for grand daughter’s graduation .

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

As we approached Denver, we encountered quite a bit of turbulence. I know this can sometimes be the case as I frequently fly this route but not on American. My gripe: Usually a pilot or co-pilot alerts passengers to the possibility of turbulance ahead of time. This did not occur nor did he communiucate during what was a pretty rough ride.

When I booked my flight a month ago - I selected a seat. That seat was NOT the one I ended up with when I checked into my flight the day before. This is the second time this has occurred. So, I checked my next flight on Wednesday and Thursday and no seat was assigned. Poor, very poor customer service.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

British Airways is an excellent airline. Comfort, food and airline personnel.

We changed our flight because of weather. Unfortunately we were on hold for over an hour, but since we were 5 people who all booked individually, we felt more comfortable doing it with an agent. It all worked out in the end.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

The flight was good. My luggage didn’t land with me when I arrived in Columbus. So grateful I was able to get my luggage back within the 2 hours😍👍.

gave me complimentary food as the flight was not full and was attentive to my needs

It was a nice and smooth trip. Gave a friendly environment throughout the journey.

Meal and drink service was good. Old plane with old business class seats were quite disappointing

The flight was smooth, the plane was spacious and clean, the staff was kind and the food was decent.

Pretzels were a bit dry and dusty, however it is nice to have a choice between sweet and savory snacks.

Flight crew was great, and even the crew for checking bags! I had a question for a friend of mine flying tomorrow and the man I talked to was awesome and answered my questions and looked up things for me when he didn’t have to! I was able to give her current & accurate info for her flight and she was so appreciative too!!

Never flown with Air Canada before, but it's now a top choice! Loved it!

Horrible crew, horrible seats configuration, ridiculous space in the toilets, Air Canada is no longer a option.

Crew at gate and onboard were just very OK, not very friendly and honestly seemed bothered to be there. I will give a shout out to still selling headphones for those who forgot.

Everything you need to know for your flight from Sydney to Philadelphia

Other airlines flying from Sydney to Philadelphia

Flights from the other most popular airlines that fly from Sydney to Philadelphia according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.